80 Rockwell Automation Publication 5000-UM005B-EN-P - November 2015
Chapter 5 Current/Voltage Analog Output Module Features (5069-OF4, 5069-OF8)
Data Echo
Data Echo automatically sends channel data values that match the analog value
that was sent to the module’s screw terminals then.
A 5069 Compact I/O analog output module returns a value that was sent to it by
the owner-controller. The echoed value is indicated in the I.Chxx.Data and is
represented in Engineering Units.
Fault and status data are also sent. This data is sent at the RPI.
No Load Detection
No Load Detection detects when a wire is disconnected from the channel or a
missing load for each output channel.
The output range used with a 5069 Compact I/O analog output module
determines the current below which a load is considered missing. For example, if
an operating 5069-OF4 uses the 4…20 mA output range, the presence of a no
load condition is detected when the channel is connected to a load that draws less
than 4 mA.
The I.Chxx.NoLoad tag indicates the presence of a no load condition when it is
set to 1.
The No Load Detection feature is disabled by default. You must enable the
feature in your Logix Designer application project. To enable No Load
Detection, you must change the C.Chxx.NoLoadEn tag to 1.
For more information on using module tags, see Appendix B,
Module Tag
Definitions on page 133.
IMPORTANT
This feature is available only in Current (mA) mode.
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